Electronic Devices and Circuits MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Electronic Devices and Circuits, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Electronic Devices and Circuits MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Electronic Devices and Circuits mcq questions that explore various aspects of Electronic Devices and Circuits problems. Each MCQ is crafted to challenge your understanding of Electronic Devices and Circuits principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Electronic Devices and Circuits MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Electronic Devices and Circuits. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Electronic Devices and Circuits knowledge to the test? Let's get started with our carefully curated MCQs!

Electronic Devices and Circuits MCQs | Page 68 of 82

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Q671.
Which of these is also called 'hot carrier diode'?
Discuss
Answer: (d).Schottky diode
Q672.
A d.c. power supply has an open circuit voltage of 100 V. When the full load current is drawn, the output drops to 80 V. The percentage voltage regulation is
Discuss
Answer: (d).25%
Q673.
The ratio of impurity atoms to intrinsic semiconductor atoms in an extrinsic semiconductor is about.
Discuss
Answer: (d).1 : 10โธ
Discuss
Answer: (b).the current should not exceed rated current
Discuss
Answer: (c).reducing anode current below holding current value
Q676.
The kinetic energy of free electrons in a metal is (where k is the de-Broglie wave number of the electron)
Discuss
Answer: (b).inversely proportional to square of k
Discuss
Answer: (c).short rise time with pulse width = 4 ฮผs
Q678.
From an n channel JFET for VDS constant and if VGS is made more negative, pinch off would occur at
Discuss
Answer: (c).zero drain current
Discuss
Answer: (d).transportation factor decreases and a decreases
Q680.
The process of deliberately adding impurity to a semi-conductor material is called
Discuss
Answer: (d).doping